An update for dhcp is now available for openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3 and openEuler-22.03-LTS Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2022-1993 Final 1.0 1.0 2022-10-14 Initial 2022-10-14 2022-10-14 openEuler SA Tool V1.0 2022-10-14 dhcp security update An update for dhcp is now available for openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3 and openEuler-22.03-LTS. The Dynamic Host Configuration Protocol (DHCP) is a network management protocol used on UDP/IP networks whereby a DHCP server dynamically assigns an IP address and other network configuration parameters to each device on a network so they can communicate with other IP networks. Security Fix(es): In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.(CVE-2021-25215) In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.(CVE-2021-25214) In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.(CVE-2021-25219) BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.(CVE-2021-25220) An update for dhcp is now available for openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3 and openEuler-22.03-LTS. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High dhcp https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1993 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-25215 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-25214 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-25219 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-25220 https://nvd.nist.gov/vuln/detail/CVE-2021-25215 https://nvd.nist.gov/vuln/detail/CVE-2021-25214 https://nvd.nist.gov/vuln/detail/CVE-2021-25219 https://nvd.nist.gov/vuln/detail/CVE-2021-25220 openEuler-20.03-LTS-SP1 openEuler-20.03-LTS-SP3 openEuler-22.03-LTS dhcp-devel-4.4.2-8.oe1.aarch64.rpm dhcp-debuginfo-4.4.2-8.oe1.aarch64.rpm dhcp-4.4.2-8.oe1.aarch64.rpm dhcp-debugsource-4.4.2-8.oe1.aarch64.rpm dhcp-devel-4.4.2-8.oe1.aarch64.rpm dhcp-debugsource-4.4.2-8.oe1.aarch64.rpm dhcp-debuginfo-4.4.2-8.oe1.aarch64.rpm dhcp-4.4.2-8.oe1.aarch64.rpm dhcp-debuginfo-4.4.2-14.oe2203.aarch64.rpm dhcp-devel-4.4.2-14.oe2203.aarch64.rpm dhcp-4.4.2-14.oe2203.aarch64.rpm dhcp-debugsource-4.4.2-14.oe2203.aarch64.rpm dhcp-help-4.4.2-8.oe1.noarch.rpm dhcp-help-4.4.2-8.oe1.noarch.rpm dhcp-help-4.4.2-14.oe2203.noarch.rpm dhcp-4.4.2-8.oe1.src.rpm dhcp-4.4.2-8.oe1.src.rpm dhcp-4.4.2-14.oe2203.src.rpm dhcp-4.4.2-8.oe1.x86_64.rpm dhcp-debugsource-4.4.2-8.oe1.x86_64.rpm dhcp-debuginfo-4.4.2-8.oe1.x86_64.rpm dhcp-devel-4.4.2-8.oe1.x86_64.rpm dhcp-devel-4.4.2-8.oe1.x86_64.rpm dhcp-debugsource-4.4.2-8.oe1.x86_64.rpm dhcp-debuginfo-4.4.2-8.oe1.x86_64.rpm dhcp-4.4.2-8.oe1.x86_64.rpm dhcp-debugsource-4.4.2-14.oe2203.x86_64.rpm dhcp-4.4.2-14.oe2203.x86_64.rpm dhcp-devel-4.4.2-14.oe2203.x86_64.rpm dhcp-debuginfo-4.4.2-14.oe2203.x86_64.rpm In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9. 2022-10-14 CVE-2021-25215 openEuler-20.03-LTS-SP1 openEuler-20.03-LTS-SP3 openEuler-22.03-LTS High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H dhcp security update 2022-10-14 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1993 In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed. 2022-10-14 CVE-2021-25214 openEuler-20.03-LTS-SP1 openEuler-20.03-LTS-SP3 openEuler-22.03-LTS Medium 6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H dhcp security update 2022-10-14 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1993 In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing. 2022-10-14 CVE-2021-25219 openEuler-20.03-LTS-SP1 openEuler-20.03-LTS-SP3 openEuler-22.03-LTS Medium 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L dhcp security update 2022-10-14 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1993 BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients. 2022-10-14 CVE-2021-25220 openEuler-20.03-LTS-SP1 openEuler-20.03-LTS-SP3 openEuler-22.03-LTS Medium 6.8 AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N dhcp security update 2022-10-14 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1993